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Home >> Mercedes Benz >> 2009 >> CL600 >> Repair and Diagnosis >> Steering >> Power Steering >> Steering -- Cl600 (216.376) >> Testing & Repair >> Setting play between thrust element and steering rack - AR46.20-P-0601CW

Setting play between thrust element and steering rack - AR46.20-P-0601CW

MODEL 172, 204, 207, 216, 221 

MODEL 212 with hydraulic power steering 

Fig 1: Setting Play Between Thrust Element And Steering Rack (1 Of 2)
G07537454Courtesy of MERCEDES-BENZ USA
Fig 2: Setting Play Between Thrust Element And Steering Rack (2 Of 2)
G07537455Courtesy of MERCEDES-BENZ USA
  Inspecting, setting    
    IMPORTANT Only one adjustment procedure for the rack-and-pinion steering is permissible. if several caulkings (center punch marks) are present on the adjustment screw (4), it is assumed that an adjustment procedure has been undertaken. In this case, the rack-and-pinion steering has to be replaced.  
1 Remove rack-and-pinion steering Model 172 with engine 271, 276 AR46.20-P-0600V
Model 204, 207 AR46.20-P-0600CW
Model 212 AR46.20-P-0600EW
Model 216, 221 AR46.20-P-0600SX 
2 Mount the rack-and-pinion steering onto steering gear housing support IMPORTANT Make sure that the workplace is clean when carrying out the work described below and while performing repairs.
Only the specified tools may be used. Before starting the repair, remove loose contamination on the steering housing (3) without using cleaning agent.
SPECIAL TOOL Steering gear housing support		 *221589013100
3 Move steering rack (1) to center position IMPORTANT The notch on protective cap (2) must accurately match the marking (8) on the steer jacket (3).  
4 Release boot (7) and slide towards tie rod end Model 172, 204, 207 AR46.40-P-0400CW
Model 212 AR46.40-P-0400EW
Model 221.0/1, 216 AR46.40-P-0400SX 
5 Carefully pull rubber plug (6) out of adjustment screw (4) Model 204.9, 212
NOTES Carefully pull out rubber plug (6). Otherwise the rubber plug (6) will be damaged.		  
6 Remove adjustment screw (4) without bore from steering housing (3) Model 204.0/2/3, 207  
7 Screw new adjustment screw with bore (4) into steering housing (3) Model 204.0/2/3, 207
IMPORTANT Pay attention to correct seating of inner compression spring (5).
TORQUE SPECIFICATION		 *BA46.20-P-1009-01N 
8 Apply marking (arrow) on steer jacket (3) and adjustment screw (4) Model 172, 204.0/2/3, 207  
9 Release adjustment screw (4) through 90° Model 172, 204.0/2/3, 207  
10 Mount bracket (02) with centering pin (01) on steer jacket (3) SPECIAL TOOL Bracket *639589013100
11 Remove centering pin (01) from bracket (02)    
12 Insert dial indicator (03) in bracket (02) over adjustment screw (4) SPECIAL TOOL Dial indicator *001589532100
13 Check play between toothed rack (1) and thrust piece with dial indicator (03). To do so, turn the toothed rack (1) to and fro using a torque wrench (04) and an open end wrench or a plug-in open end wrench NOTES The specified test torque of the toothed rack (1) must not be exceeded here Otherwise the compression spring (5) may be damaged.  
IMPORTANT Further procedure for determining an unacceptable play between toothed rack (1) and thrust piece:
  • Play less than 0.04 mm: Adjust play.
  • Play 0.08 to 0.4 mm: Adjust Play.
  • Play greater than 0.4 mm: Replace rack-and-pinion steering.
  
Model 204 *BE46.20-P-1001-01E 
Model 172, 207, 212, 216, 221 *BE46.20-P-1001-01C 
TORQUE SPECIFICATION Model 172 *BA46.20-P-1006-01F 
TORQUE SPECIFICATION Model 204, 207, 212 *BA46.20-P-1008-01N 
TORQUE SPECIFICATION Model 216, 221 *BA46.20-P-1007-01M 
SPECIAL TOOL Open end wrench (model 172, 207, model 204, 216, 221 without 4MATIC) *201589000100
SPECIAL TOOL Plug-in open end wrench (model 204, 212, 216, 221 with 4MATIC) *221589020900
14 Detach bracket (02) and dial indicator (03) from steer jacket (3)    
15 Adjust play between toothed rack (1) and thrust piece IMPORTANT If play is less than the specified tolerance, loosen adjustment screw with bore (4) slightly. If play is greater than the specified tolerance, tighten adjustment screw with bore (4) slightly.  
16 Check play between toothed rack (1) and thrust piece using dial indicator (03), if necessary repeat adjustment procedure IMPORTANT If the play is outside the permissible tolerance, the adjustment must be repeated.  
SPECIAL TOOL Bracket *639589013100
SPECIAL TOOL Dial indicator *001589532100
17 Carefully press rubber plug (6) into adjustment screw (4) Model 204.9, 212  
18 Mount boot (7) Model 172, 204, 207 AR46.40-P-0400CW
Model 212 AR46.40-P-0400EW
Model 221.0/1, 216 AR46.40-P-0400SX 
19 Turn toothed rack (1) from end stop to end stop using socket wrench on input shaft of rack-and-pinion steering IMPORTANT The toothed rack (1) must move easily and evenly.  
    SPECIAL TOOL Socket wrench *203589043103
20 Detach rack-and-pinion steering from steering gear housing support SPECIAL TOOL Steering gear housing support *221589013100
21 Install rack-and-pinion steering Model 172 with engine 271, 276 AR46.20-P-0600V
Model 204, 207 AR46.20-P-0600CW
Model 212 with hydraulic steering AR46.20-P-0600EW
Model 212 with electric steering AR46.20-P-0600EL
Model 221, 216 AR46.20-P-0600SX 
TEST VALUES FOR STEERING GEAR

Number Designation Model 172
BE46.20-P-1001-01C Play between thrust piece and steering rack mm 0.04...0.08
TEST VALUES FOR STEERING GEAR

Number Designation Model 207 Model 212 Model 216 Model 221
BE46.20-P-1001-01C Play between thrust piece and steering rack mm 0.04...0.08 0.04...0.08 0.04...0.08 0.04...0.08
TEST VALUES FOR STEERING GEAR

Number Designation Model 204
BE46.20-P-1001-01E Play between thrust piece and steering rack mm 0.04...0.08
STEERING GEAR

Number Designation Model 172
BA46.20-P-1006-01F Toothed rack Test torque Nm 12 (±2)
STEERING GEAR

Number Designation Model 204 without 4-MATIC Model 204 with 4-MATIC Model 207
BA46.20-P-1008-01N Toothed rack Test torque Nm 12 12 12
BA46.20-P-1009-01N Adjusting screw to rack-and-pinion steering   Nm 85 85 85
STEERING GEAR

Number Designation Model 212 without 4-MATIC Model 212 with 4-MATIC
BA46.20-P-1008-01N Toothed rack Test torque Nm 12 12
STEERING GEAR

Number Designation Model 216 except 4MATIC Model 216 with 4MATIC
BA46.20-P-1007-01M Toothed rack Test torque Nm 12 12
STEERING GEAR

Number Designation Model 221 except 4MATIC Model 221 with 4MATIC
BA46.20-P-1007-01M Toothed rack Test torque Nm 12 12
Fig 3: Identifying Dial Indicator (001 589 53 21 00)
G07504275Courtesy of MERCEDES-BENZ USA
Fig 4: Identifying Open End Wrench (201 589 00 01 00)
G07290340Courtesy of MERCEDES-BENZ USA
Fig 5: Identifying Socket Wrench (203 589 04 31 03)
G07537458Courtesy of MERCEDES-BENZ USA
Fig 6: Identifying Steering Gear Housing Support (221 589 01 31 00)
G07537459Courtesy of MERCEDES-BENZ USA
Fig 7: Identifying Plug In Open-End Wrench (221 589 02 09 00)
G07537460Courtesy of MERCEDES-BENZ USA
Fig 8: Identifying Bracket (639 589 01 31 00)
G07537461Courtesy of MERCEDES-BENZ USA
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